It all depends on where you look I guess. If you only believe that the music displayed in the media and mainstream is all that's out here and is a sign of the genre as a whole, then I'd see the point. The music in the commercial sense has become formulaic and stale for the most part. There's still some good music being made in the mainstream world, it's just that there's no true passion/soul behind the shit.
However, if you listen to the abundance of dope indie artists, niggas on the underground, or niggas teetering the mainstream line, you'll find the genre is alive and well. But, the majority of hip hop "fans" I see, only look to the mainstream for a basis of the whole genre, which is limiting. I knew this nigga who kept complaining about hip hop like "niggas ain't rapping about shit these days", I asked him "yo, you don't fuck with Big KRIT, Phonte, Kendrick, even that bum ass Jay Electronica?", this nigga went "I only know about Kendrick, the fuck are them other dudes?". This is when I realized the issue with a lot of people. When Jay Electronica was trending on Twitter the other day, the responses ranged from "who is this Jay Electronica guy, he's pretty good", or "I haven't heard of him before". A lot of people don't know how Big KRIT is either, and I'd blame them on just not being invested in the culture. As far as I'm concerned, hip hop got the tools to never run its course if we actually start uplifting the artists with skill and passion behind the music. Media want you to only see the bullshit music or the controlled "dope music", fuck that.